Rinnai RX199i Tankless Water Heater Instruction Manual

Rinnai RX199i Tankless Water Heater

Product Information

Specifications

• Models: RX199i, RX180i, RX160i, RX130i, RXP199i, RXP160i, CX199i, CX160i, CXP199i, CXP160i
• Residential models certified for installation in mobile homes
• Commercial models not certified for installation in mobile homes

FAQs

• Q: Can commercial models be installed in mobile homes?
  • A: No, commercial models are not certified for installation in mobile homes.
• Q: Where can I find more detailed information about the water heater?
  • A: Refer to the Tankless Water Heater Installation and Operation Manual supplied with the unit or visit www.rinnai.us for detailed information.

WARNING

If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.

• It is recommended that a trained and qualified professional who has attended a Rinnai training class complete your installation. The warranty may be voided due to any improper installation.
• Read all instructions in this manual and the “Tankless Water Heater Installation and Operation Manual” before installing and converting the water heater; the water heater must be installed according to the exact instructions in these manuals.
• Proper installation is the responsibility of the installer.
• When installation is complete, leave this manual with the water heater or give the manual directly to the consumer.

For the Conversion from Indoor Models to Outdoor Installations

Models

This manual applies to the following tankless water heater models:

Residential Models

RX199i RX180i RX160i RX130i RXP199i RXP160i| (REU-NB3237FF-US) (REU-NB2934FF- US) (REU-NB2530FF-US) (REU-NB2024FF-US) (REU-NBP3237FF-US) (REU-NBP2530FF-US)
Residential models are certified for installation in mobile homes.

Commercial Models

CX199i CX160i CXP199i CXP160i| (REU-NB3237FFC-US) (REU-NB2530FFC-US) (REU- NBP3237FFC-US) (REU-NBP2530FFC-US)
Commercial models are not certified for installation in mobile homes.

Safety

For installations in Canada, the conversion shall be carried out in accordance with the requirements of the provincial authorities having jurisdiction and in accordance with the requirements of the CSA-B149.1, Natural Gas and Propane Installation Code.

The appliance must be installed in accordance with:

• Local codes or, in the absence of local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Code.
• The Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280 or CSA Z240 MH Series, Manufactured Homes.

Safety Symbol

• Safety alert symbol. Alerts you to potential hazards that can kill or hurt you and others.

DANGER

• Indicates an imminently hazardous situation which, if not avoided, will result in personal injury or death.

WARNING

• Indicates a potentially hazardous situation which, if not avoided, could result in personal injury or death.

CAUTION

• Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It may also be used to alert against unsafe practices.

IMPORTANT

• The French manual continues.

Overview

IMPORTANT

This manual provides instructions on converting the Rinnai indoor tankless water heater (applicable models1) to an outdoor installation. For detailed information on the water heater, such as specifications, installation instructions, and operating information, refer to the “Tankless Water Heater Installation and Operation Manual” supplied with the unit, or located online at www.rinnai.us.

About The Water Heater

• The indoor tankless water heater (applicable models1) can convert to an outdoor installation with the Rinnai outdoor vent cap (Figure 1).

What You Will Need

Item Included

• Unpack the Rinnai Outdoor Conversion Kit and verify the following contents are included.
• If any items are missing from your kit, contact your local dealer/distributor or call Rinnai Customer Care at 1-800-621-9419.

Item Needed (Field Supplied)

• Phillips Head Screwdriver
• Smart Device (such as a smartphone)

1 Applicable models listed in this manual.

Choose Outdoor Location

Location Guidelines

When selecting an installation location, you must ensure that all water heater guidelines and clearances will be met. Consider the installation environment, water quality, and the need for freeze protection. Refer to the installation sections in the “Tankless Water Heater Installation and Operation Manual” for gas line, water lines, electrical and condensate disposal requirements.

IMPORTANT

When an exhaust outlet is blocked by snow or other objects, the water heater may run at a limited capacity, or can be shut down with an error code. Remove snow or other objects around the exhaust outlet. External hot and cold water pipes and valves should be insulated to prevent freezing. To protect pipes and valves from severe cold conditions, additional protection should be used.

Use the following guidelines to ensure you have selected the correct location for the water heater:

• The water heater is not exposed to ambient temperatures lower than -4°F (-20°C) with direct wind exposure.
• The water heater is not exposed to corrosive compounds in the air.
• The water heater location complies with the required clearances.
• The planned combustion air intake and exhaust outlet locations meet the required clearances.
• The water supply does not contain chemicals or exceed total hardness that will damage the heat exchanger.
• A standard 3-prong 120 VAC, 60 Hz properly grounded and weather-resistant power outlet is available.
• The installation must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, and/or CSA B149.1, Natural Gas and Propane Installation Code.

Dimension

Clearances

Clearances for Outdoor Installations

Front

| 0 in.

Clearance for servicing is 24 in. (610 mm) in front of water heater.

Do not block the exhaust outlet opening.

Back| 0 in.
Sides (Left and Right)| 2 in. (51 mm)
Front Exhaust| 24 in. (610 mm)

IMPORTANT

• The outdoor vent cap (part #: RXOVC) cannot be used in combination with a recess box.

Clearances for Multiple Outdoor Water Heaters

IMPORTANT

• Refer to the “Tankless Water Heater Installation and Operation Manual” for additional clearances.

Non-Direct Vent Clearances (Room Air and Outdoor Installations)

| | Canadian Installations 1 (CSA B149.1)| U.S. Installtions 2 (ANSI Z223.1/NFPA 54)
---|---|---|---
Ref| Description| Other than direct vent (Outdoor unit and/or Room Air)| Other than direct vent (Outdoor unit and/or Room Air)
A| Clearance above grade, veranda, porch, deck, or balcony| 12 in. (30 cm)| 12 in. (30 cm)
B| Clearance to window or door that may be opened| 36 in. (91 cm)| 4 ft (1.2 m) below or to side of opening; 1 ft (300 mm) above opening
C| Clearance to permanently closed window| |

D

| Vertical clearance to ventilated soffit, located above the terminal within a horizontal

distance of 2 ft (61 cm) from the center line of the terminal

|

|

E| Clearance to unventilated soffit| |
F| Clearance to outside corner| |
G| Clearance to inside corner| *| 12 in. (30 cm)
H| Clearance to each side of center line

extended above meter/regulator assembly

| 3 ft. (91 cm) within a height 15 ft.

(4.6 m)

|
I| Clearance to service regulator vent outlet| 3 ft. (91 cm)|

J

| Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance|

36 in. (91 cm)

| 4 ft (1.2 m) below or to side of opening; 1 ft (300 mm) above opening
K| Clearance to a mechanical air supply inlet| 6 ft (1.83 m)| 3 ft (91 cm) above if within 10 ft

(3 m) horizontally

L

|

Clearance above paved sidewalk or paved driveway located on public property

|

7 ft (2.13 m) [1]

| Vents for Category II and IV appliances cannot be located above public walkways or other areas where condensate or vapor can cause a nuisance or hazard.
M| Clearance under veranda, porch, deck, or

balcony

| 12 in. (30 cm) [2]| *

• 1 In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
• 2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.

If locally adopted installation codes specify clearances different than those illustrated, then the most stringent clearance shall prevail.

Clearance to opposite wall is 24 in (60 cm)

Clearance to opposite wall is 24 in (60 cm).

[1] A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. [2] Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.| *Clearances are in accordance with local installation codes and the requirements of the gas supplier.

Connect Power Supply

WARNING

• Do not use an extension cord or adapter plug with this water heater.
• The water heater must be electrically grounded in accordance with local codes and ordinances or, in the absence of local codes, in accordance with the National Electrical Code, ANSI/ NFPA No. 70.
• This water heater is equipped with a three-prong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded three-prong receptacle. Do not cut or remove the grounding terminal from this plug.

When connecting the power supply, follow these guidelines:

• Do not rely on the gas or water piping to ground the water heater. Ground locations are provided inside the water heater.
• The water heater requires 120 VAC, 60 Hz power from a properly grounded circuit.
• If using the 6.5 ft (2.0 m) power cord supplied with the water heater, plug the power cord into a standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet. The supplied power cord is outdoor rated and can be used for outdoor installations.
• A disconnect switch may be required and installed for the incoming 120 VAC power for outdoor installation. The switch should be a type that is suitable for outdoor use. Check the National Electrical Code, ANSI/NFPA 70 and your local codes for a proper switch type to use in your area. Power connections must be protected from the weather.

Install Outdoor vent Cap

WARNING: The outdoor vent cap is used for outdoor installations only.

• DO NOT install internal (indoor) water heaters outdoors without the Rinnai outdoor vent cap.
• DO NOT install internal (indoor) water heaters indoors with the Rinnai outdoor vent cap.
• DO NOT install in a recess box.

IMPORTANT

• The water heater must be mounted to the wall before the outdoor vent cap is installed. If the outdoor vent cap is installed on the water heater first, you are not able to secure the water heater on a wall by installing screws into the upper mounting bracket.
• Refer to the section “Install the Water Heater” in the “Tankless Water Heater Installation and operation Manual” for more information on mounting the water heater to the wall, connecting the water, gas and power supply, and other installation guidelines.

1. Remove four screws on top of water heater (Figure 6).
2. Attach two supplied mounting brackets (left and right side) using four screws removed at step #1 (Figure 7).
3. Remove and discard screw from concentric flue connection (Figure 8).
4. Remove and discard exhaust adapter ring (Figure 9).
5. Inspect gaskets prior to installing outdoor vent cap as shown in Figure 10. Make sure exhaust outlet faces the front of the water heater and the outdoor vent cap is fully inserted.
6. Open front door of outdoor vent cap. Using a Phillips head screwdriver (field-supplied), secure outdoor vent cap to water heater with two screws supplied in kit (Figure 11).
7. Close front door of outdoor vent cap (Figure 12).

Adjust Parameter Settings

This tankless water heater is set up for natural gas and indoor installations as default. When power is connected for the first time, you need to choose the correct gas type and outdoor setting.

WARNING

• If proper settings are not selected before you use the tankless water heater, it will cause a hazardous situation which results in personal injury or property damage.

IMPORTANT

• Confirm that the inlet gas pressure is between the minimum and maximum pressures allowed for this appliance.
• Refer to the “Tankless Water Heater Installation and Operation Manual” for additional parameter settings, such as recirculation settings, gas type, pump speed, etc. (the manual is supplied with the tankless unit or located online at www.rinnai.us).

Adjust the tankless water heater parameter settings by choosing one of the two options below:

• Option 1 (Recommended): Adjust parameter settings using a Bluetooth®- capable Smart Device
• Option 2: Adjust parameter settings from the tankless water heater integrated controller.

Option 1: Using a Bluetooth-Capable Smart device

_ Note: _To utilize BLE, your connecting device (smartphone, tablet, computer, etc.) must have Bluetooth 4.0 or a newer version. Contact your connecting device manufacturer if you are not sure if your connecting device has Bluetooth 4.0 or a newer version.

1. Download the Rinnai Central app by scanning the following QR code:
2. Supply power to the tankless water heater for the first time. The controller displays “SEt” and the “Priority” button LED light on the controller is blinking.
3. Download and install the Rinnai Central™ app.
4. Open the Rinnai Central™ app from your smart device. Create an account and log in.
5. Push the Bluetooth button on the controller. The Bluetooth LED light turns solid.
6. Tap “Connect to a Rinnai Tankless Water Heater” on the Rinnai Central™ app. You will hear a beeping sound when pairing between the app and water heater is established.
7. Follow the steps in the Rinnai Central™ app to change your tankless water heater settings.
8. When settings are complete, the controller display will appear blank (the display will turn off).
9. Tankless water heater setup is complete. Press the “On/Off” button to turn on the tankless water heater.

IMPORTANT

The controller is automatically locked after 30 minutes of inactivity. To unlock the controller:

1. Press and hold down the “Priority” button.
2. While holding down the “Priority” button, press the up arrow button until a beep is heard (approximately 5 seconds). Then, release both buttons at the same time.

Note

• The key symbol on the controller will not illuminate, indicating the controller is unlocked.

IMPORTANT

• If the gas type is changed, you must power cycle the water heater (turn off electrical power to the water heater, then turn on power again).
• Power can be turned off by unplugging the power cord or turning off electricity at the circuit breaker. The controller does not control the electrical power to the water heater.

Option 2: Adjust Parameter Settings From Integrated Controller

1. Supply power to the tankless water heater for the first time. The controller displays “SEt” and the “Priority” button LED light on the controller is blinking.
2. Press the “Priority” button. The controller displays “nG” (natural gas).
3. (A). If using natural gas: Press the “On/Off” button to confirm natural gas. Then, proceed to step 4. If using propane gas, skip this step and proceed to step 3(B).
   • (B). If using propane gas: Press the up or down arrow button. The controller displays “LPG” (Liquid Propane Gas). Press the “On/Off” button to confirm propane gas. Then, proceed to step 4.
4. The controller displays “In” (indoor installation).
5. Press the up or down arrow buttons. The controller displays “Out” (outdoor installation). Press the “On/Off” button to confirm “Out” (outdoor installation).
6. The controller displays “nG” or “LPG,” and “In” or “Out” alternatively while the “Priority” button LED light is flashing. The controller is showing the current gas setting and indoor/outdoor setting. For example, the controller displays “nG” and “Out” alternatively, indicating the water heater is set for natural gas and outdoor installation.
7. If settings are correct: Press the “Priority” button.
   • If settings are not correct:
   1. Press the up arrow button to return to step 1. Repeat the steps starting at step 1.
8. The controller briefly displays “888” and makes a beeping sound. Then, complete initial settings and the controller is off.
9. When settings are complete, the controller display will appear blank. Press the “On/Off” button to turn on the unit.

IMPORTANT

The controller is automatically locked after 30 minutes of inactivity. To unlock the controller:

1. Press and hold down the “Priority” button.
2. While holding down the “Priority” button, press the up arrow button until a beep is heard (approximately 5 seconds). Then, release both buttons at the same time.

Note

• The key symbol on the controller will not illuminate, indicating the controller is unlocked.

IMPORTANT

• If the gas type is changed, you must power cycle the water heater (turn off electrical power to the water heater, then turn on power again).
• Power can be turned off by unplugging the power cord or turning off electricity at the circuit breaker. The controller does not control the electrical power to the water heater.

Final Steps

• Complete the checklist in the “Post-Water Heater Installation Checklist” section of the “Tankless Water Heater Installation and Operation Manual” when installation is complete.
• For detailed information on installation and operation information, refer to the “Tankless Water Heater Installation and Operation Manual.”
• If “LPG” (Liquid Propane Gas) is selected, apply the supplied gas conversion label at an open space above the existing label on the left side of the water heater.
  • Note: See the “Key Points For A Successful Installation” document (on tankless water heater front cover) for illustration of label location.
• The default altitude setting for this water heater is 0-2,000 ft. (0-610 m). If this water heater is installed at a different altitude, select the appropriate altitude setting. Also, set up other parameters properly. Refer to the section “Configure Parameter Settings” in the “Tankless Water Heater Installation and Operation Manual” for specific details on setting parameters.

Contact

Rinnai America Corporation

• 103 International Drive Peachtree City, GA 30269
• Tel. 1-800-621-9419
• Web. www.rinnai.us
• www.rinnai.ca

References

• #1 Selling Tankless Water Heater in the US | Rinnai

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